The Keepers

The secluded village of Aureria is protected by The Keepers, an ancient order of fierce, all-female werewolf warrior-priestesses. As the Alpha, Annesse is the living shield of her people, bound by a sacred oath to the Moon Deity.
Their peace shatters with the arrival of the Iron Fist, a brutal raiding band led by the ruthless warrior, Thon, who raid and plunder villages, leaving stain of blood wherever they raid. The raiders descend upon Aureria hunting for the Crown of Tarsus, a terrifying legendary relic hidden beneath the village. The Crown commands an unstoppable army of a million Tarses-wolf beasts with scorpion tails that cannot be killed by mortal men. Thon seeks this power to conquer the entire world and forge a new empire. The second truth is the only counter: the Crown can only be destroyed by the self-sacrifice of an Alpha who is "pure in heart."
Annesse is trapped between her sworn duty and a deep, forbidden love for Thon. She ultimately defeats him in the climactic battle but cannot deliver the killing blow, choosing instead to break her sacred oath and spare him. Her new plan is to fulfill the prophecy by sacrificing herself to destroy the Crown and save the world from the Tarses.
This decision, however, is a devastating dilemma: the lives of all surviving Keepers are mystically bound to hers; her death means their immediate annihilation. Annesse must choose between saving the world and sacrificing her entire people.
Thon tried to stop her from sacrificing herself to destroy the Crown of Tarsus. But the question remains: Is this because of his love for her or because of his greedy ambition to rule the world?